I think the comma idea is more intuitive personally. Your idea is a little cleaner in that it doesn't trip over real commas like in Crosby, Stills, Nash & Young, but the "database guy" in me says that the Artist field is one entity. Plus ID3v2's handling of multiple artist fields is questionable at best.

But to be honest I'd take *any* implementation of this feature if it were easy to use. The comma idea is just one way that I think is intuitive and relatively easy to program. Hell, I wrote out the pseudocode in the other thread, not that it'll be that easy when dealing with live bullets on the Empeg, but can it be *that* difficult, either?